The total volume of plant cells is often significantly greater than the total volume in animal cells. The most reasonable explanation for this observation is that: a. The total volume of plant cells is often significantly greater than the total volume in animal cells.
b. The most reasonable explanation for this observation is that plant cells have a much more highly convoluted (folded) plasma membrane than animal cells.
c. Animal cells are spherical, whereas plant cells are elongated. plant cells are capable of having a much higher surface-to-volume ratio than animal cells.
d. Plant cells contain a large vacuole that occupies much of the volume of the cell.

d. Plant cells contain a large vacuole that occupies much of the volume of the cell.

Explanation:

The vacuole is a membrane-bound organelle which is often found in plant and fungi cells, as well as in certain bacteria, protists and animal cells. The vacuole is filled with water that forms a solution containing inorganic and organic compounds. The size of the vacuole may vary depending on the requirements of the specific cell type. In plant cells, vacuoles often occupy an important fraction of the overall cell volume and play key roles during growth and development, influencing diverse cellular functions ranging from photosynthesis to transpiration.

a and c are the answeres

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!